GB1360022A

GB1360022A – Discharge lamps
– Google Patents

GB1360022A – Discharge lamps
– Google Patents
Discharge lamps

Info

Publication number
GB1360022A

GB1360022A
GB1703171A
GB1703171A
GB1360022A
GB 1360022 A
GB1360022 A
GB 1360022A
GB 1703171 A
GB1703171 A
GB 1703171A
GB 1703171 A
GB1703171 A
GB 1703171A
GB 1360022 A
GB1360022 A
GB 1360022A
Authority
GB
United Kingdom
Prior art keywords
mercury
magnesium
range
discharge lamps
yttrium
Prior art date
1971-05-25
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Application number
GB1703171A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Thorn Electrical Industries Ltd

Original Assignee
Thorn Electrical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1971-05-25
Filing date
1971-05-25
Publication date
1974-07-17

1971-05-25
Application filed by Thorn Electrical Industries Ltd
filed
Critical
Thorn Electrical Industries Ltd

1971-05-25
Priority to GB1703171A
priority
Critical
patent/GB1360022A/en

1972-05-15
Priority to CA142,096A
priority
patent/CA959914A/en

1972-05-17
Priority to ZA723378A
priority
patent/ZA723378B/en

1972-05-24
Priority to DE2265321A
priority
patent/DE2265321C3/en

1972-05-24
Priority to IT24783/72A
priority
patent/IT955808B/en

1972-05-24
Priority to NL7207009.A
priority
patent/NL157748B/en

1972-05-24
Priority to DE2225223A
priority
patent/DE2225223C3/en

1972-05-25
Priority to AU42776/72A
priority
patent/AU459873B2/en

1974-05-30
Priority to CA201,200A
priority
patent/CA959913A/en

1974-07-17
Publication of GB1360022A
publication
Critical
patent/GB1360022A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

H—ELECTRICITY

H01—ELECTRIC ELEMENTS

H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

H01J61/00—Gas-discharge or vapour-discharge lamps

H01J61/02—Details

H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature

H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent

Abstract

1360022 Gas discharge lamps THORN ELECTRICAL INDUSTRIES Ltd 15 May 1972 [25 May 1971] 17031/71 Heading H1D An ultra-violet mercury discharge lamp has a filling including mercury, magnesium in the form of a halide and an inert gas, the weight ratio of magnesium to mercury vapour being in the range 0.002 : 1 to 0.1 : 1. Trace additions of halides of the following metals may also be included: gallium, thallium, aluminium, bismuth, iron, zinc, yttrium, chromium, and cadmium. The mercury partial pressure is in the range 0.25 to 10 atmospheres. An outer envelope of the lamp may have a coating of magnesium fluorogermanate or yttrium vanadate to generate visible light.

GB1703171A
1971-05-25
1971-05-25
Discharge lamps

Expired

GB1360022A
(en)

Priority Applications (9)

Application Number
Priority Date
Filing Date
Title

GB1703171A

GB1360022A
(en)

1971-05-25
1971-05-25
Discharge lamps

CA142,096A

CA959914A
(en)

1971-05-25
1972-05-15
Discharge lamps

ZA723378A

ZA723378B
(en)

1971-05-25
1972-05-17
Improvements in discharge lamps

DE2265321A

DE2265321C3
(en)

1971-05-25
1972-05-24

Mercury vapor lamp emitting ultraviolet light

IT24783/72A

IT955808B
(en)

1971-05-25
1972-05-24

MERCURY VAPOR DISCHARGE LAMP

NL7207009.A

NL157748B
(en)

1971-05-25
1972-05-24

MERCURY VAPOR DISCHARGE LAMP AND METHOD FOR MANUFACTURING THAT.

DE2225223A

DE2225223C3
(en)

1971-05-25
1972-05-24

Mercury vapor lamp emitting ultraviolet light

AU42776/72A

AU459873B2
(en)

1971-05-25
1972-05-25
Improvements in discharge lamps

CA201,200A

CA959913A
(en)

1971-05-25
1974-05-30
Discharge lamps

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

GB1703171A

GB1360022A
(en)

1971-05-25
1971-05-25
Discharge lamps

Publications (1)

Publication Number
Publication Date

GB1360022A
true

GB1360022A
(en)

1974-07-17

Family
ID=10087986
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB1703171A
Expired

GB1360022A
(en)

1971-05-25
1971-05-25
Discharge lamps

Country Status (7)

Country
Link

AU
(1)

AU459873B2
(en)

CA
(1)

CA959914A
(en)

DE
(2)

DE2265321C3
(en)

GB
(1)

GB1360022A
(en)

IT
(1)

IT955808B
(en)

NL
(1)

NL157748B
(en)

ZA
(1)

ZA723378B
(en)

Cited By (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2182486A
(en)

*

1985-10-04
1987-05-13
Ushio Electric Inc
Magnesium vapor discharge lamp

GB2183085A
(en)

*

1985-10-04
1987-05-28
Ushio Electric Inc
Iron vapor discharge lamp

Families Citing this family (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB1397034A
(en)

*

1973-07-05
1975-06-11
Thorn Electrical Ind Ltd
Discharge lamps

NL7712058A
(en)

*

1977-11-02
1979-05-04
Philips Nv

LOW-PRESSURE MERCURY DISCHARGE LAMP.

DE2953446C2
(en)

*

1978-12-28
1983-12-22
Mitsubishi Denki K.K., Tokyo

High pressure metal vapor discharge lamp

1971

1971-05-25
GB
GB1703171A
patent/GB1360022A/en
not_active
Expired

1972

1972-05-15
CA
CA142,096A
patent/CA959914A/en
not_active
Expired

1972-05-17
ZA
ZA723378A
patent/ZA723378B/en
unknown

1972-05-24
IT
IT24783/72A
patent/IT955808B/en
active

1972-05-24
NL
NL7207009.A
patent/NL157748B/en
not_active
IP Right Cessation

1972-05-24
DE
DE2265321A
patent/DE2265321C3/en
not_active
Expired

1972-05-24
DE
DE2225223A
patent/DE2225223C3/en
not_active
Expired

1972-05-25
AU
AU42776/72A
patent/AU459873B2/en
not_active
Expired

Cited By (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2182486A
(en)

*

1985-10-04
1987-05-13
Ushio Electric Inc
Magnesium vapor discharge lamp

GB2183085A
(en)

*

1985-10-04
1987-05-28
Ushio Electric Inc
Iron vapor discharge lamp

GB2182486B
(en)

*

1985-10-04
1990-06-06
Ushio Electric Inc
Magnesium and iron vapor discharge lamp

Also Published As

Publication number
Publication date

DE2225223B2
(en)

1977-07-14

NL7207009A
(en)

1972-11-28

AU459873B2
(en)

1975-04-10

AU4277672A
(en)

1973-11-29

DE2265321B2
(en)

1980-08-28

IT955808B
(en)

1973-09-29

ZA723378B
(en)

1973-02-28

NL157748B
(en)

1978-08-15

DE2265321A1
(en)

1977-06-16

DE2225223A1
(en)

1972-12-07

DE2265321C3
(en)

1982-09-30

DE2225223C3
(en)

1978-03-16

CA959914A
(en)

1974-12-24

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(en)

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(en)

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GB1316356A
(en)

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Electric discharge lamps

GB1290189A
(en)

1972-09-20

JPS52120585A
(en)

1977-10-11

Metallic vapor discharge lamp

GB1329929A
(en)

1973-09-12

Electric discharge vessels

Legal Events

Date
Code
Title
Description

1974-11-27
PS
Patent sealed

1982-12-15
PCNP
Patent ceased through non-payment of renewal fee

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